Home / 93,410.09-128,908.76-53,129.64

Finding the Fourth Proportional to 93,410.09, 128,908.76 and 53,129.64

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Solution

The fourth proportional to 93,410.09, 128,908.76 and 53,129.64 is: 73,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,410.09 : 128,908.76 = 53,129.64 : x
  2. Step 2: Convert to fraction form
    93,410.09/128,908.76 = 53,129.64/x
  3. Step 3: Cross multiply
    93,410.09x = 128,908.76 × 53,129.64
  4. Step 4: Simplify right side
    93,410.09x = 6,848,876,528.26
  5. Step 5: Solve for x
    x = 6,848,876,528.26/93,410.09
  6. Step 6: Final answer
    x = 73,320.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.